The analysis and design procedure of an antenna for a CW Doppler radar system being developed for pilot warning of midair collision hazards is presented. The antenna consists of two vertical arrays of half-wavelength dipoles mounted near a circular conducting cylinder. Each vertical array is composed of three vertical dipoles. Each array provides relatively uniform illumination (2–3 dB) in the forward 180° angular segment of the horizontal plane and approximately +10-150°coverage in the vertical plane. The antenna could be used in a two-mode operation, either in a standard monopulse radar system (sum and difference amplitude patterns) or in a system where amplitude and phase are the measurable quantities.
|Original language||English (US)|
|Number of pages||8|
|Journal||IEEE Transactions on Aerospace and Electronic Systems|
|State||Published - Sep 1971|
ASJC Scopus subject areas
- Aerospace Engineering
- Electrical and Electronic Engineering